Pump



G. W.' KELLOGG.

PUMP. APPLICATION FILED SEPT-17, 1917.

Patented Oct. 26,1920,

IN V EN TOR.

WITNESSES:

[la ATTORNEYS.

j UE' T all whom it may] concern:

Be it known that I, GEORGEWQ Kaunas;-

of Rochester, in the county ofMonroe and State of. New York, have invented certain ne'Wand useful Improvements in- Pumps;

and I do hereby declare thefollovvi'ng tobe a full, clear, and exact description the same, reference being had to the accompany ing drawings, forming a part of this specification, and to the reference characters marked thereon. I

' My invention has for i'tspurpose to im prove the construction of air pumpsyfmo're particularly the type of pump employed for inflating pneumatic tires; and one ofthe specific objects is'to' provide for eflicient I lubrication of the parts While preventing factured at a comparatively loW costl To.

outin the claims atthe'endof the specifica- V access of lubricating fluid tothe airlineg I 7 further object consists in aifordingia" simple arrangement which can be readily manuthese and other ends'the invention residesin certain improvements and fcombinations of parts all as will be hereinafter more fully described, thenovel features being pointed tion. Inthe drawings: e 4 I Figure 11" is a vertical sectional vievv of a invention, and, a

Fig.2 is an. end elevation', vvith parts broken away, and illustratinga portion of the interior, in section. I 1.

Similar reference characters throughout the drawings indicate similar parts. A very common and serious objectionv to a the majority ,of'povver 'pumps intended for pneumatic tire inflatingpurposes isvfound in thefacility,With which-oil enters the air line, and is ejected frequently into the tire,

V the'cranklcase or intocontact with the pisv Specification of Letters Patent; Application filed September 17,-1917.- Seria1- .1mm.

pumpIconstructed in accordance with my ton. I haveialso :provided forlubricating I the plstonand cylinder sufficiently tozinsure an easy running poperation",'vvhile preventing an excess of lubricating'material in the cyld1 inder.

- "The invention may be carried out-in various Ways, and the structure vvhich I V have disclosed is an-ade'quate feXampleZo'f one prac f tical embodiment. In thisfi'arrangement, 1

designates the cylinder5 and2 is a reciprocat 1ng -p1ston,-to WlllCll is connected a connect ing rod :3. The cylinder is provided With an] outlet valve 4:, and the pist'onl2 is provided With an inlet valve disk 15, vvhiehlilatter is mounted'upona valve stem 6. EThe 'valve stem 6 travels in the guide7", an'dthe valve" 7 is" held normally in closed position by i a spring8, 'The valve 5 is; lon=the underside,

in contact With the air in .thecrank case so that if itvvere'not for the inclosed lubricathe cylinder;

'tion feed, oil Would be liable to; splash :into- V I Ordinarily; the suction created is su flicientj" 'to open the inlet valve 5 duringthe down f strokeof the piston,' but in order-to make this operation a positive oa i place; an

tuator on a the connecting rod' to-engage the valve stem and open'thevalvef The actuator V. s preferably in the 'formg,;of athreadedpi'n 9, which is adjustable in the luglO, carried by I the connecting rod. I There are two such lugs 10 arranged on Opposite" sides of the connecting rod, so'th'at if'the' pump is run-in the, I

opposite-direction; that is runiunder instead of over the actuator can readily be posi tioned to coepe'rate with it,' by :placing the actuator; pin 9 on th left sideof theconnect ing rod,as shown in Fig. 2', and'then turning V the piston around sothat' the valve stem Will engage the actuator-inits nevv pesitionf: It" f Will'be apparent that; as the piston travelsfrom its uppermost position downwardly;

95, I I 'the connectingrodf3-vvill swing outvvardly uponit's' axis 111; moving the actuator 9 up- 'Wardly, and thus opening the valve 5.

-The connecting rod '8 carriesatits lower end a bearing 12,vvhich";receives acrank pin" 13"arranged uponthe crank disk; 14L The latter is fixedly mounted upon the drivingmounted in a b'earing 18, which is carried by shaft 15 by meansof pins 16. Theidriving l shaft l5"carries the driving gear-5'17 and is I bearing 18 and thecrank disk 14;,there is provided means for forming a lubricating pocket around the driving shaft 15-, To this end, I employ a collar 20,extending from the bearing 18 in spaced r'elatiqn'tothe driving shaft 15 and generallyin the same direction therewith. I also provide on the crank disk 14;, a sleeve 21' arrangedin juxtaposition to the collar '20, and preferably engaging the exterior of the latter so that it may act as a bearing for the crank disk if desired. The collar 20 extends preferably to a point in contact with the crank disk 14,'and the sleeve 21 preferably extends very nearly to the bearing 18. It will be seen that this con: struction affords a completely lnclosed v pocket 22-, surrounding the driving shaft The p0cket22 is supplied withv lubricating fluid through an opening 23 in the bearing, which is normally closed by a plug 24. .25 is an opening in the collar 20, permitting access of lubricating material to the interior of the sleeve 21, and the said sleeve is provided with an opening 26, which connects theexteriorof, the collar 20 with the interior of thebearing'lQ, thereby affording lubrication I between the last mentioned bearmg and the crank pin 13, which; is-inclosed,'that is in.-

' pletely-inclosed from the outside by the plug.

, closed from the space inside the crankcase as well as from the outside. Although the drawing shows the lubricant pocket com- 24, it will be understood that the present invention ,is capable of use withoutthe plug :24 since it is old in the art to do away with a" covering for a lubricant pocket. Even without the plug 24:, the lubricant pocket is st'illinclosed inside of the crankcase, and is generally inclosed from the-exterior, except fora small'supply opening. c

. 27 designates the base of the crank case, and 28 is a removable plate which permits access to the interior;parts. The cylinder 1 is provided near its bottom with one or more I slots or openings 29, which extend upwardly to the eXteriorthrough, a projecting portion or, casting. 30 formed upon the cylinder,

1 This aflords'arecess which receives packing material to hold a "lubricating substance. 7

The pistoncontacts with the lubricating =material-in recess 29, at the limit of its down :stroke and thus the'cylinder and pistonare 1'constantly-lubricated, but no excess'of oil can enter the cylinder,or the air line.-

; Such. a structurecan be manufacturedat a very low cost, and lendsitself readilyto the operation of a series of pumps from one drive shaft, by intermeshing gearing between a plurality of sleeves 21, onlyone of which may be driven from the shaft 15., v I claim as my invention: V

1. A crank case, a, shaft and a bearing s therefor in said .crank case, an inwardly GextendingcoHar Lon said-crank case, con:

centric to and -in spacedrelation with said shaft, a crank disk onsaid shaft, bearing on said collar, a crank pin on said -crank disk, the collar being adapted'to contain oil for lubr cation of the shaft, crank disk, and

crank'pin, said crank disk and crank pin having a passage therein whereby oil may be supplied to the crank pin. 7

2. crank case,.a shaft and bearing located 111' said crank case, a housing for said bearinghaving a collarthereon, concentric with the shaft spaced therefrom and extend ing inwardly, a-crank disk on .theshaft and havlng a sleeve fitting over said collar 7 wherebyan inclosed pocketis formed within said collar and sleeve,x between said bearing and crank disk and around said shaft.

3. A crank case, .shaft and bearing, a coll lar on said crank case concentric with the shaft and spaced therefrom adapted to contain a lubricant and extending inwardly,a

crank disk on said shaft having 'afsleeve extending over said collar and rotatable therefor supplying lubricant to the crank pin,

which reservoir is "accessible from the exteriorofthe crank case while the'reservoir V and passageway are inclosed inside, thecrank case to prevent the free access of the i lubricant'to the bottom of said-crank case.

5. The combination with a shaft, of at;

bearing therefor, a crank disk; on said shaft and a collarprojecting from saidibearing toward said crank disk spacedfrom said shaft and in cooperation with said crank disk to form an inclosed lubricant" pocket within said-collar and'between said bearing f and crank disk. l

6. The combination shaft, of a bearing therefor, a crank di'sk on said shaft, I

a collar projecting from said bearingtoward a sleeve on said crank diskalso spaced from the shaft and in cooperation with said colsaid crank disk and spaced from the shaft,

lar to form an inclosedlubricantpockeflfa crank pin on said crankdisk andinclosed passagewaysflwithin the crank disk and crank pin leading from said p'ocket and 111.' a A ,7, The combination with ai'shaft, 'of' a bearing therefor, a crank disk on said shaft, a sleeve projecting from/said 'crank' disk toward said bearing and spaced abouttsaid shaft and in cooperation with said bearing to form, an inclosed lubricant pocket within said sleeve, contiguousto said shaft and between thebearing and crank'disk,

. 1'20: adapted to supplyilubricant to said crank 8. In combination with a shaft a bearing spaced abolit the shaft extending toward member therefor rotatable relative 'to' said the flange and in cooperation] with said" shaft, a flange on said shaft fixed relative sleeve to'form a bearing therefor, and to, 1 0

thereto and spaced from said bearing memform an inolosed lubricant pocket within 5 ber and a sleeve on said flange spaced about said sleeve and collararound said shaft and lsaid shaft extending toward said bearing between the flange and bearing member. I a

member, a collar on said bearing member GEORGE W ,KELLOGG. r 

